You can extend only if you have already subscribed 2020. If you are subscribing 2020 from July 15 onwards, you will get automatic extension [No need to pay here again]
Since 2020 CSE Mains has been rescheduled to January 8 2021, we have extended 2020 subscription from the present July till November 2020 at a nominal price of Rs 200.
Subscription to 2020 extension is closed now as we reached the maximum available subscriptions
Click here to subscribe to 2021